// @(#)NI_LinkEmulation.java   6/2004
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package drcl.inet.core;

/**
 * Base class for modeling network interface card with link emulation options.
 */
public abstract class NI_LinkEmulation extends NI
{
  /** The propagation delay of the emulated link. */
  protected double propDelay = 0.0;

  /** Link emulation is enabled? */
  protected boolean linkEmulation = false;

  public NI_LinkEmulation()
  { super(); }
  
  public NI_LinkEmulation(String id_)
  { super(id_); }
  
  public void duplicate(Object source_) 
  {
    if (!(source_ instanceof NI_LinkEmulation)) return;
    super.duplicate(source_);
    NI_LinkEmulation that_ = (NI_LinkEmulation)source_;
    propDelay = that_.propDelay;
    linkEmulation = that_.linkEmulation;
  }
  
  
  public String info()
  {
    return   super.info()
         + "State:" + (isReady()? "ready": "busy")
         + (linkEmulation? ", Link emulation enabled with prop. delay "
                 + propDelay: "") + "\n";
  }
  
  public void setLinkEmulationEnabled(boolean v_)
  { linkEmulation = v_; }
  
  public boolean isLinkEmulationEnabled()
  { return linkEmulation; }
  
  /** Returns the propagation delay of the emulated link. */
  public double getPropDelay() 
  { return propDelay; }
  
  /** Enables link emulation and sets the propagation delay of the emulated
   * link. */
  public void setPropDelay(double delay_) 
  { propDelay = delay_; linkEmulation = true; }
}




